goodsontimetra goodsontimetra
  • 24-05-2021
  • Mathematics
contestada

I need help with steps of solving this equation.

I need help with steps of solving this equation class=

Respuesta :

Аноним Аноним
  • 24-05-2021

Answer:

x = {-1/5, 1}

Step-by-step explanation:

(5x - 2)² - 1 = 8

Add 1 to both sides

(5x - 2)² = 9

Take the square root of both sides

5x - 2 = ±3

------------------------------

Solution I for 5x - 2 = +3

5x - 2 = 3

add 2 to both sides

5x = 5

Divide both sides by 5

x = 1

------------------------------

Solution II for 5x - 2 = -3

5x - 2 = -3

add 2 to both sides

5x = -1

Divide both sides by 5

x = -1/5

-------------------------------

x = {-1/5, 1}

Answer Link

Otras preguntas

Smaller cells have a(n) _________ surface area to volume ratio. a. larger b. smaller c. equal d. none of the above
55% of what number is 22?
Which of the following describes a structure that both prokaryotic and eukaryotic cells have in common?
How does ATP store energy for life's processes and how is it recycled?
can some1 help me with grade7s math?
why is 16:14 and 64:60 not equivalent
Prions are proteins that act as an infectious agent. They cause a variety of diseases, including "mad cow" disease. Prions cannot produce more potions on their
Birds and reptiles conduct _____ fertilization and lay the eggs outside of the body. a. internal b. external
How does ATP store energy for life's processes and how is it recycled?
In 1668, Francesco Redi conducted an experiment with jars of meat. This experiment was noteworthy because it _____.